linux-kernel - Re: [PATCH] Suppress bogus F13 trigger on Sirius keyboard full fan shortcut

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Message-ID: <864114f2-e2b2-410c-98bd-d9e18da74aec@tuxedocomputers.com>
Date: Fri, 10 Jan 2025 17:57:45 +0100
From: Werner Sembach <wse@...edocomputers.com>
To: Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
 bpf@...r.kernel.org
Subject: Re: [PATCH] Suppress bogus F13 trigger on Sirius keyboard full fan
 shortcut

Am 09.01.25 um 19:37 schrieb Werner Sembach:
> The TUXEDO Sirius 15 Gen1 and the TUXEDO Sirius 15 Gen2 Notebooks have an
> additional "fan" key next to F12.
>
> Pressing it alone sends a F14 key press which can be bound by user space.
>
> Pressing it while holding the FN key triggers two things:
> - The EC firmware locks the fan speed of the internal fans at 100%
> - F13 key press is registered which by default is already bound in xkb and
>    desktop environments (e.g. in KDE Plasma it launches system settings)
>
> To avoid this unexpected double duty of the FN shortcut, this bpf program
> suppresses the F13 key press.
>
> Signed-off-by: Werner Sembach <wse@...edocomputers.com>
This patch is also discussed (and more up to date) here: 
https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/-/merge_requests/166